If you have Windows 7, 8 or 10 installed in 64-bit mode, take advantage of running Minecraft on 64-bit Java.
Why run Minecraft with 64-bit Java...
- Less crashes
- Smoother and faster rendering
- Less lagging
Every computer setup is different and every user will have a different experience. But in general, if you have a 64 bit system, then running 64 bit Java will give you a better Minecraft experience.
Check if you're running Windows 7, 8 or 10 in 64-bit
You should then have a window that looks something like this…
If it says “64-bit Operating System“, then you’re good to go. Scroll down to check your version of Java.
If it doesn’t say “64-bit Operating System” then you’re most likely running 32-bit and you should obviously stick with 32-bit Java. Perhaps have a chat with your local computer shop, brother in-law, kids or whoever it is you turn to when you need to re-install your operating system.
Check if you're running 32-bit or 64-bit Java
You should see a window that looks like this…
If the ‘Path’ is “C:\Program Files\Java…” then you are running the 64-bit version of Java. Move on to the “Checking Minecraft” tab to see if Minecraft is using the 64-bit version.
If the ‘Path’ is “C:\Program Files (x86)\Java…” then you are running the 32-bit version of Java. Move on to the next tab “Installing 64-bit”.
Installing 64-bit version of Java
Once installed, go back to the previous tab and follow the instructions to check that the 64-bit version of Java is installed correctly.
Check that Minecraft is using 64-bit Java
If a warning appears above the “Done” button, then the 64-bit version of Java isn’t installed correctly, or you are using a shortcut to start Minecraft which is specifically calling the 32-bit version of Java. Make sure you run Minecraft by using the Minecraft.exe program.
If no warning appears above the “Done” button, then Minecraft is using the 64-bit version of Java.